Wed, 08 May 2002 10:15:04 +0200 paulson the new predicate "relation"
Wed, 08 May 2002 10:14:35 +0200 paulson tidied
Wed, 08 May 2002 10:14:07 +0200 paulson better xsymbol syntax
(0) -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip